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arXiv math/0009200math.AG
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关于球上亏格为6的五角曲线族及相应的模形式

On the Family of Pentagonal curves of genus 6 and associated modular forms on the Ball

K. Koike

摘要:

本文研究亏格为6的复代数曲线族$\mathcal{F}$具有5阶自同构的周期映射的逆。这是一个具有2个参数的族,并且覆盖在某种类型的Del Pezzo曲面上。周期满足的超几何微分方程Appell的$F_1({3/5},{3/5},{2/5},{6/5})$的两个变量后,一定的标准化的变量参数。G. Shimura(1964),T. Terada(1983,1985),P. Deligne -G. D. Mostow(1986)和T.山崎- M。Yoshida(1984).最近M。吉田提出了一种新的方法,使用的概念,重叠空间。基于他们的结果,我们显示的周期映射的逆的黎曼θ常数的表示。这是第一个变种的工作H。Shiga(1981)和K. Matsumoto(1989,2000)对co-compact的情况。

英文摘要:

In this article we study the inverse of the period map for the family $\mathcal{F}$ of complex algebraic curves of genus 6 equipped with an automorphism of order 5. This is a family with 2 parameters, and is fibred over a certain type of Del Pezzo surace. The period satisfies the hypergeometric differential equation for Appell's $F_1({3/5},{3/5},{2/5},{6/5})$ of two variables after a certain normalization of the variable parameter. This differential equation and the family $\mathcal{F}$ are studied by G. Shimura (1964), T. Terada (1983, 1985), P. Deligne - G.D. Mostow (1986) and T. Yamazaki- M. Yoshida(1984). Recently M. Yoshida presented a new approch using the concept of configration space. Based on their results we show the representation of the inverse of the period map in terms of Riemann theta constants. This is the first variant of the work of H. Shiga (1981) and K. Matsumoto (1989, 2000) to the co-compact case.

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